Testing ASP.net and C# using Ruby (NDC2010)

Testing C# and ASP.net using RubyMeerkatalyst@Ben_HallBen@BenHall.me.ukBlog.BenHall.me.ukCodeBetter.com/blogs/benhall

London based C# MVPWeb Developer @ 7digital.com Working on a number of Open Source ProjectsCo-Author of Testing ASP.net Web Applicationshttp://www.testingaspnet.com

Outside-in developmentUI level testingCucumberObject level testing using RSpec

WHY?http://www.flickr.com/photos/atomicpuppy/2132073976/

Realised Ruby doesn’t have as many problems as .net

Behaviour Driven DevelopmentCucumber, RSpec and many others

Direct communication with customers

UI Testing is not hard...Unless you make an effort

What does this do?[Test]public void WatiNSearchText_SearchWatiN_TextDisplayedOnScreen(){ IE ie = new IE("http://localhost:49992/WatiNSite/"); ie.TextField(Find.ByName(“q")).TypeText("WatiN"); ie.Button(Find.ByValue("Search")).Click(); bool result = ie.Text.Contains("WatiN"); Assert.IsTrue(result); }

WebRathttp://www.flickr.com/photos/whatwhat/22624256/

visitclick_linkfill_inclick_buttoncheck and uncheckchooseselectattach_file

visit ‘http://www.google.com’fill_in :q, :with => ‘asp.net’click_button ‘Google Search’response_body.should contain(‘Microsoft’)

Design UI for testabilityOutside-in development encourages this

DATA!http://www.flickr.com/photos/gagilas/2659695352/

Hard and ImportantProduction data in dev anyone?

Active Record and SQL ServerOrder.create

class Order < ActiveRecord::Baseset_primary_key :OrderIDhas_many :OrderItemhas_one :OrderStatus, :primary_key => "OrderStatusID", :foreign_key => "OrderStatusID"belongs_to :Customer, :primary_key => "UserName", :foreign_key => "UserName" def self.create() order = Order.new (:modified_on => DateTime.now, :created_on => DateTime.now, :order_id => Guid.new.to_s)order.OrderStatusID = OrderStatus.find_or_createorder.Customer = Customer.find_or_create(Faker::Internet.user_name)order.save! return order endendLegacy DatabaseLooking at auto-generatingmodel for testing

Test Data BuildersProductCatalogBuilder .create(10.products) .for_shop(123) Customer .create(“Bob”) .owning(10.products) .with_credit_card(CreditCard.create) .with_address(Address.create)

Customer.find_or_create(Faker::Internet.user_name)>>> Faker::Internet.user_name"akeem_kris“>>> Faker::Internet.user_name"taylor.hodkiewicz“>>> Faker::Internet.user_name=> "nicolette.nitzsche">>> Faker::Internet.emaildejon@hayeswalsh.uk>>> Faker::Name.name=> "Murray Hermiston"

2 rules of data generationAlways insertAlways clean up

We still need to write the tests in a successful manner

Cucumberhttp://www.flickr.com/photos/vizzzual-dot-com/2738586453/

Feature:Search GoogleIn order to find informationAs a researcherI want to search google Scenario: Searching for a valid termGivenI visit "http://www.google.com/" WhenI enter a search for "asp.net" AndI click the "Google Search" button ThenI should see the first result "The Official Microsoft ASP.NET Site"

Thanks to TekPub for Kona sample

Feature: Display Products In order to browse the catalog The customer Needs to see productsScenario: Single featured product on homepage Given the featured product "Adventure Works 20x30 Binoculars" When I visit the homepage Then I should see "Adventure Works 20x30 Binoculars" listed under "Featured"

Given /^the featured product "([^\"]*)"$/ do |product_name|Product.createproduct_name, ‘featured’end

When /^I visit the homepage$/ dovisit url + '/'end

“Designed” UI for TestabilityThen /^I should see "([^\"]*)" listed under "([^\"]*)"$/ do |product, area| within div_id(area) do |products|products.should contain(product) endEnddef div_id(area) "#" + area.downcase.underscoreend

Using a ‘real’ frameworkUnit testing frameworks for UI testing? Really?!

Before doopen_connectionempty_databaseendat_exit doempty_databaseEnddef empty_databasedate_of_last_restore = '01/01/2010'OrderItem.delete_all["DateAdded > ?", date_of_last_restore]Order.delete_all["CreatedOn > ?", date_of_last_restore]endMultiple Hooks

require 'cucumber_screenshot'After do |scenario| screenshot if scenario.failed?endAfterStep('@screenshot') do |scenario| screenshot if screenshot_due? end

def url "http://www.website.local"endWebrat.configure do |config|config.mode = :seleniumconfig.application_framework = :externalendenv_selenium.rb

Webrat.configure do |config|config.mode = :seleniumconfig.application_framework = :externalconfig.selenium_browser_key = get_browser_keyenddef get_browser_key() command = "*firefox" command = ENV['BROWSER'] if ENV['BROWSER'] return commandendenv_selenium.rb

cucumber --profile selenium browser=*firefoxcucumber --profile selenium browser=*safaricucumber --profile selenium browser=*iexplorecucumber --profile selenium browser=*googlechrome

env_headless.rbWebrat.configure do |config| config.mode = :mechanizeendcucumber --profile webrat

ANTI-PATTERNShttp://www.flickr.com/photos/gagilas/2659695352/

Noisy, repeated scenariosScenario: Blowout Specials Given "Cascade Fur-lined Hiking Boots" in "Blowout Specials" When I visit the homepage Then I should see "Cascade Fur-lined Hiking Boots" listed under "Blowout Specials“Scenario: Blowout Specials Given " Trailhead Locking Carabiner " in "Blowout Specials" When I visit the homepage Then I should see "Trailhead Locking Carabiner " listed under "Blowout Specials"Scenario: Blowout Specials Given " Climbing Rope with Single Caribiner " in "Blowout Specials" When I visit the homepage Then I should see " Climbing Rope with Single Caribiner " listed under "Blowout Specials"

Single scenario, multiple examplesScenario Outline: Blowout Specials Given <product> in "Blowout Specials" When I visit the homepage Then I should see <product> listed under "Blowout Specials" Examples: | product | | "Cascade Fur-lined Hiking Boots" | | "Trailhead Locking Carabiner" | | "Climbing Rope with Single Caribiner" |

Long scenariosWhen I go to the "Checkout" pageAnd I enter “Mr A. Nonymous ” in “Card Name” textboxAnd I enter “1111111111111111” in “Card Number” textboxAnd I enter “GU1 2PE” in “Card Post Code” textboxAnd I select “01” in “Card Start Month” textboxAnd I select “09” in “Card Start Year” textboxAnd I select “01” in “Card End Month” textboxAnd I select “19” in “Card End Year” textboxAnd I enter “123” in “Card Validation” textboxAnd I click the "Pay with Card (Add Card)" buttonThen I should be on the "Download" page

Clear, re-useable, readableWhen I go to the "Checkout" pageAnd I enter a valid credit card And I click the "Pay with Card (Add Card)" buttonThen I should be on the "Download" page

Implementation details in stepsWhen I go to the "Checkout" pageAnd I enter “Mr A. Nonymous ” in “Card Name” textboxAnd I enter “1111111111111111” in “Card Number” textboxAnd I enter “GU1 2PE” in “Card Post Code” textboxAnd I select “01” in “Card Start Month” textboxAnd I select “09” in “Card Start Year” textboxAnd I select “01” in “Card End Month” textboxAnd I select “19” in “Card End Year” textboxAnd I enter “123” in “Card Validation” textboxAnd I click the "Pay with Card (Add Card)" buttonThen I should be on the "Download" page

Business focusedWhen I go to the "Checkout"And I enter a valid credit card And payThen I should be taken to my Downloads

Conjunction StepsScenario: Recommendations should include other similar purchased products Given customer order for "Trailhead Locking Carabiner" and "Climbing Rope with Single Caribiner" And customer order for "Trailhead Locking Carabiner" and "North Star Compass"Given I have shades and a brand new Mustang

Reuse and recombineScenario: Recommendations should include other similar purchased products Given the following customers and orders: |customer | order_list | |Customer A | Trailhead Locking Carabiner, Climbing Rope with Single Caribiner | |Customer B | Trailhead Locking Carabiner, North Star Compass |Given I have shades And I have a brand new Mustang

All steps within a single file

Steps focused around application domain

Small, focused environment config

Multiple extension frameworksTest command line applicationsTest Silverlight\FlexTest WPF based desktop applicationsExecute in parallel across multiple machines

RSpechttp://www.flickr.com/photos/dodgsun/467076780/

Code CoverageFeature coverage is far more important

Ruby (via IronRuby)p = ProductController.new(nil)C#public class ProductController : Controller{IStoreService _service; public ProductController(IStoreService service) { _service = service; }}Thanks to TekPub for Kona sample

Define the contextC#public ActionResult Index(int? id){ProductListViewModel model = null; if (id.HasValue) model = _service.GetHomeModel(id.Value); else return RedirectToAction("Index", "Home"); return View(model);}Ruby (via IronRuby)describe ProductController, “Product homepage requested" do context "when Category ID is empty" do endendThanks to TekPub for Kona sample

Create the context$: << ‘../../Kona/bin/’require ‘Kona.dll’Include Kona::Controllersdescribe ProductController, “Product homepage requested" do context "when Category ID is empty" do endendThanks to TekPub for Kona sample

Create the contextrequire '../spec_helper‘describe ProductController, “Product homepage requested" do context "when Category ID is empty" do endendThanks to TekPub for Kona sample

Create the contextrequire '../spec_helper‘describe ProductController, “Product homepage requested" do context "when Category ID is empty" do before(:each) do controller = ProductController.new nilcategory_id = nil @result = controller.Indexcategory_id end endendThanks to TekPub for Kona sample

Define the specrequire '../spec_helper‘describe ProductController, “Product homepage requested" do context “with empty Category ID" do before(:each) do ... End it "should redirect to main landing page" do @result.route_values[‘controller'].should == ‘Index’ @result.route_values[‘home'].should == ‘Home’ endendThanks to TekPub for Kona sample

Stubbing via caricaturecontext “with validCategory ID" do Before(:each)view_model = product_list('Test Category') service = isolate Services::IStoreServiceservice.when_receiving(:get_home_model).with(valid_category_id).return(view_model) controller = ProductController.new service @result = controller.Indexvalid_category_id end it “returns a view model” do @result.view_model.should_not == nil end it “should return name of selected category” do @result.view_model.selected_category.name.should == 'Test Category‘ endendThanks to TekPub for Kona sample

http://www.flickr.com/photos/buro9/298994863/WHY RUBY?

[Subject(typeof(HomeController))]public class when_the_navigation_controller_is_asked_for_the_header : specification_for_navigation_controller{ static ActionResult result; Establish context = () => identity_tasks.Stub(i => i.IsSignedIn()).Return(true); Because of = () => result = subject.Menu(); It should_ask_the_identity_tasks_if_the_user_is_signed_in = () => identity_tasks.AssertWasCalled(x => x.IsSignedIn()); It should_return_the_default_view = () => result.ShouldBeAView().And().ViewName.ShouldBeEmpty(); It should_not_use_a_master_page = () => result.ShouldBeAView().And().MasterName.ShouldBeEmpty(); It should_set_the_view_model_property_to_a_new_menu_view_model = () =>result.Model<MenuViewModel>().ShouldNotBeNull(); It should_set_the_properties_of_the_view_model_correctly = () => result.Model<MenuViewModel>().IsLoggedIn.ShouldBeTrue(); }

describe HomeController, “When the navigation controller is asked for the header” do before(:all) do @identity_tasks.Stub(i => i.IsSignedIn()).Return(true); @result = subject.Menu(); end it “should ask the identity tasks if the user is signed in” do @identity_tasks.did_receive(:is_signed_in) .should be_successful end it “should return the default view” do @result.shouldbe_view @result.view_name.shouldbe_empty end it “should not use a master page” do @result.shouldbe_view @result.master_name.shouldbe_empty end it “should set the view model property to a new menu view model” do @result.shouldbe_view @result.model.should_notbe_nil end it “should set the properties of the view model correctly” do @result.model.is_logged_in.shouldbe_true endend

Consider your test suite containing > 500 testsEach test matters.But each problem hurts more

http://www.flickr.com/photos/leon_homan/2856628778/

Focus on finding true valueLook at other communities for advice, support and inspiration

@Ben_HallBen@BenHall.me.ukBlog.BenHall.me.ukhttp://lolcatgenerator.com/lolcat/120/

Tests and Databasesdescribe Services::StoreService do before(:all) dosession = NHibernate::create_sessionNHibernate::insert_category session Services::StoreService.new session @model = service.get_home_model 0 end it "should return constructed object" do @model.should_notbe_nil end it "should return all categories from database" do @model.Categories.to_a.Count.should == 1 endendThanks to TekPub for Kona sample

Share specsshare_examples_for "unauthorized user" do it 'sets an-error message' do result.view_model.error_message.should == "Sorry, you need to login to access." end it 'redirects to the login page' do result.view_name.should end end describe CheckoutController do it_should_behave_like “unauthorized user“describe AccountController doit_should_behave_like “unauthorized user“

Dynamically create specsdef find_products(category)Product.Find(:all, :conditions=> “category #{category}”)enddescribe ‘products should be able to be added to basket' do before(:all) do @basket = Basket.new endfind_products(‘Boots’).each do |p| it “can add #{p.product_name} to basket" do @basket.add_item p.id @basket.should contain(p) end endend

INTEGRATION TESTShttp://www.flickr.com/photos/gagilas/2659695352/

Useful Linkshttp://www.github.com/BenHallhttp://blog.benhall.me.ukhttp://www.codebetter.com/blogs/benhallhttp://stevehodgkiss.com/2009/11/14/using-activerecord-migrator-standalone-with-sqlite-and-sqlserver-on-windows.htmlhttp://www.testingaspnet.comhttp://msdn.microsoft.com/en-us/magazine/dd434651.aspxhttp://msdn.microsoft.com/en-us/magazine/dd453038.aspxhttp://www.cukes.infohttp://github.com/aslakhellesoy/cucumberhttp://github.com/brynary/webrat

using Cuke4Nuke.Framework;usingNUnit.Framework;usingWatiN.Core;namespaceGoogle.StepDefinitions{ publicclassSearchSteps { Browser _browser; [Before] publicvoidSetUp() { _browser = new WatiN.Core.IE(); } [After] publicvoidTearDown() { if (_browser != null) { _browser.Dispose(); } } [When(@"^(?:I'm on|I go to) the search page$")] publicvoidGoToSearchPage() { _browser.GoTo("http://www.google.com/"); } [When("Î search for \"(.*)\"$")] publicvoidSearchFor(string query) { _browser.TextField(Find.ByName("q")).TypeText(query); _browser.Button(Find.ByName("btnG")).Click(); } [Then("Î should be on the search page$")] publicvoidIsOnSearchPage() { Assert.That(_browser.Title == "Google"); } [Then("Î should see \"(.*)\" in the results$")] publicvoidResultsContain(stringexpectedResult) { Assert.That(_browser.ContainsText(expectedResult)); } }}

Given /^(?:I'm on|I go to) the search page$/ do visit 'http://www.google.com'end When /Î search for "([^\"]*)"$/ do|query| fill_in 'q', :with => query click_button 'Google Search'end Then /Î should be on the search page$/ do dom.search('title').should == "Google"end Then /Î should see \"(.*)\" in the results$/ do|text| response.should contain(text)end

SoftwareRecommended:IronRubyRubyCucumberRspecWebRatmechanizeSelenium RCselenium-clientCaricatureactiverecord-sqlserver-adapterOptional:XSP \ MonoJetBrain’sRubyMineJRubyCapybaraCelerityActive record active-record-model-generatorFakerGuid

SQL Server and Rubygem install activerecord-sqlserver-adapterDownload dbi-0.2.2.zip Extract dbd\ADO.rb to ruby\site_ruby\1.8\DBD\ADO.rb

Testing ASP.net and C# using Ruby (NDC2010)

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